Best Of
Re: US vs. Chinese CI fittings for new boiler + piping
In my limited experience I've never seen a fitting that rusted out, it's always a nipple anyway. Run what you brung
Re: US vs. Chinese CI fittings for new boiler + piping
Only did 3 new steam installs and some replacement piping on others.
It seemed logical to use china fittings above water line where piping drains dry and US below the water line because of thickness, quality of material etc.
Always malleable, no cast iron around in the Midwest.
Re: Staged boiler retrofit design questions
Understood, thank you. The tanks are remote, piped up and over equipment via 1/2" Cu. I should have the ability to pipe that 1/2" line anywhere assuming that the connection is the PONPC?
Re: Steam Boiler Pressure & Some Of My Adventures
That MegaSteam is an excellent boiler, but whoever installed it completely disregarded the piping instructions. Your system will run much better when it's repiped. What model is it- should be MST-something.
Re: Combustion air for cast iron boiler
People tend to overestimate how tight a spray foam building is. Usually is better than regular construction but can still leak a fair bit if a couple of details are not handled well. Even if super tight, a power vent unit doesn't exhaust all that many CFM of air and it will take a heck of a tight building to get it any measurable depressurization in a large workshop. Power vent units are also much less sensitive to building pressure.
If the boiler does end up enclosed in a small room, than it needs a high / low vent to the open workshop space provided that workshop space is big enough.
Kaos
Re: Combustion air for cast iron boiler
Manuals are awesome.
Read carefully. Install more carefully.
HVACNUT
Re: Combustion air for cast iron boiler
100K You need min , 100" square of opening . You may have to add a few..
Air in a Can , can be a option..
Big Ed_4
Re: Combustion air for cast iron boiler
1000,btu fire needs min one square" fresh air .. Code book .
Big Ed_4
Re: Can I use new oil boiler to replace old? Old is leaking. Old has vent, looks like new does not? TY
Who knows? Nowhere near enough information to tell.
Re: Help with piping configuration and head loss
Thank you, @EdTheHeaterMan ! This makes sense now! I've just downloaded the "Zoning Made Easy", also.
I have access to an older B&G HV Pump with solid motor mounts and a Spiralink coupler. The pump curve looks like a good fit, also.
Would this be a workable solution as an alternative to the Taco 0012?



